设置菜单和工具条

代码：

可任选一套方法进行显示和隐藏，如果决定有动画的那套，那么一开始初始化时就必须用set方法进行控制

-(void) setBar

{

    UIBarButtonItem *addButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:nil];

    

    UIBarButtonItem *searchButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemSearch target:self action:nil];

    

    self.navigationItem.leftBarButtonItems = @[addButton, searchButton];

    

    UIBarButtonItem *organizeButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemOrganize target:self action:nil];

    

    [self setToolbarItems:@[organizeButton]];

}



-(void) showBar

{

    // 无论哪套设置方法都可以这么判断是否隐藏

    if (self.navigationController.navigationBar.hidden)

    {

        NSLog(@"show it");

        

        // 两套隐藏方法，这套无动画，不可混用

        //self.navigationController.navigationBar.hidden = NO;

        //self.navigationController.toolbar.hidden = NO;

        

        // 有动画

        [self.navigationController setNavigationBarHidden:NO animated:YES];

        [self.navigationController setToolbarHidden:NO animated:YES];

        

    }

    else

    {

        NSLog(@"hide it");

        [self.navigationController setNavigationBarHidden:YES animated:YES];

        [self.navigationController setToolbarHidden:YES animated:YES];

    }

}



- (void)viewDidLoad

{

    [super viewDidLoad];

    // Do any additional setup after loading the view.

    

    [self setBar];

    

}



-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event

{

    [self showBar];

}